Bike cuts out under load?

[Lus7]

http://youtu.be/-ELP-yTcY1M
does the throttle sticking like that mean my carb is dirty?


also, when checking the level in the carb, do I suck on the other end of the hose to draw fuel out?

I forgot to mention that hardly anything comes out unless I do

[mellowyellow]

http://youtu.be/-ELP-yTcY1M
does the throttle sticking like that mean my carb is dirty?


also, when checking the level in the carb, do I suck on the other end of the hose to draw fuel out?

I forgot to mention that hardly anything comes out unless I do

throttle will stick when you adjust the cable too tight, basically the same as turning the throttle yourself.

when checking the level, you will need to fit the clear tube to the carby drain, just as you have already done. if the fuel wont run out freely, try starting the bike. does the fuel pump out now?

[ducatilover]

The fuel should run freely from the carb drain, you shouldn't need to siphon it

[Lus7]

The fuel should run freely from the carb drain, you shouldn't need to siphon it

When I hook the hose up and unscrew the bolt a bit of fuel will trickle into the hose, but it wont really level off or anything. it just sits there, I have to suck on the hose till the level rises then let it rest and it will drain back down to the float level.

I'll video what I mean when I get home from work

[Lelitu]

well, that sounds like a possible fuel supply problem right there..

[mellowyellow]

When I hook the hose up and unscrew the bolt a bit of fuel will trickle into the hose, but it wont really level off or anything. it just sits there, I have to suck on the hose till the level rises then let it rest and it will drain back down to the float level.

I'll video what I mean when I get home from work

could be clogged breather, jets or no fuel being pumped into carby. dont worry about the video, drain the tank to 1/4, create the fault, fit the clear tube (which wont allow fuel to flow without syphoning) and hit the starter. does fuel come out now?
the fact you can suck on it to get fuel and then it will drain back into the carby tells me the float bowl is empty. just prove fuel is getting to the carby when the fault occurs. after that, its 90% a carby issue.

[Lus7]

http://www.youtube.com/watch?v=FwxQv...ature=youtu.be

does this look right to you?

[mellowyellow]

http://www.youtube.com/watch?v=FwxQv...ature=youtu.be

does this look right to you?

nice video, but you need to prove you have fuel in the carby when the fault occurs.
again, create the fault with a 1/4 full tank, attach the clear tube like you did in the video (NO syphoning!!) and see if any fuel runs into the tube.
*if it doesn't, you are one step closer to finding the problem. check to see if the fuel pump is working.
*if it does, hit the starter and see if more fuel is pumped into the clear tube. make sure the end of the clear tube is below the carbi and able to drain into a bottle/container.

[Flip]

Are you sure the bike is not running onto reserve?

Failing that it is either the tank breather, the fuel filter or fuel tap.

[Lus7]

nice video, but you need to prove you have fuel in the carby when the fault occurs.
again, create the fault with a 1/4 full tank, attach the clear tube like you did in the video (NO syphoning!!) and see if any fuel runs into the tube.
*if it doesn't, you are one step closer to finding the problem. check to see if the fuel pump is working.
*if it does, hit the starter and see if more fuel is pumped into the clear tube. make sure the end of the clear tube is below the carbi and able to drain into a bottle/container.

OK, will do that this evening. Is the fuel supposed to continuously flow free out of the carb when unscrewed? or does it just drain till empty?
Considering how a float works, it should consistently flow right?

[Lus7]

I have been unable to recreate the issue. hmmm

[mellowyellow]

OK, will do that this evening. Is the fuel supposed to continuously flow free out of the carb when unscrewed? or does it just drain till empty?
Considering how a float works, it should consistently flow right?

engine off, the small amount of fuel you had in the video was just what was in the float bowl. it doesnt suprise me that fuel wont flow unless you suck on the hose. the pump will be slowing the flow rate to a tiny trickle, until you either atempt to start the bike or suck on the hose.
of course i could be wrong

just remember to try the test when the fault does happen.
read my last post for my suggested test to make sure the float bowl has fuel at the time of the fault.

good luck